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An inspector at a lumberyard needs to find out if their kiln dry bulb is the correct temperature. In order to properly dry the lumber, the average bulb temperature needs to be at most 130 degrees Fahrenheit. An analyst collects data on the bulb temperature over the course of several weeks, and then tests the claim that the bulb's average temperature is at most 130 degrees Fahrenheit. He uses a significance level of 0.05. Choose the correct direction of the test and the appropriate sampling distribution. ○ Two-tailed test; z-distribution. Two-tailed test; t-distribution. Left-tailed test; z-distribution. Left-tailed test; t-distribution. Right-tailed test; t-distribution. We do not have enough information. Right-tailed test; z-distribution.

An inspector at a lumberyard needs to find out if their kiln dry bulb is the correct temperature. In order to properly dry the lumber, the average bulb temperature needs to be at most 130 degrees Fahrenheit. An analyst collects data on the bulb temperature over the course of several weeks, and then tests the claim that the bulb's average temperature is at most 130 degrees Fahrenheit. He uses a significance level of 0.05. Choose the correct direction of the test and the appropriate sampling distribution. ○ Two-tailed test; z-distribution. Two-tailed test; t-distribution. Left-tailed test; z-distribution. Left-tailed test; t-distribution. Right-tailed test; t-distribution. We do not have enough information. Right-tailed test; z-distribution.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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An inspector at a lumberyard needs to find out if their kiln dry bulb is the correct temperature. In order to properly dry the lumber, the average bulb temperature needs to be at most 130 degrees Fahrenheit. An analyst collects data on the bulb temperature over the course of several weeks, and then tests the claim that the bulb's average temperature is at most 130 degrees Fahrenheit. He uses a significance level of 0.05. Choose the correct direction of the test and the appropriate sampling distribution. ○ Two-tailed test; z-distribution. Two-tailed test; t-distribution. Left-tailed test; z-distribution. Left-tailed test; t-distribution. Right-tailed test; t-distribution. We do not have enough information. Right-tailed test; z-distribution.
Transcribed Image Text:An inspector at a lumberyard needs to find out if their kiln dry bulb is the correct temperature. In order to properly dry the lumber, the average bulb temperature needs to be at most 130 degrees Fahrenheit. An analyst collects data on the bulb temperature over the course of several weeks, and then tests the claim that the bulb's average temperature is at most 130 degrees Fahrenheit. He uses a significance level of 0.05. Choose the correct direction of the test and the appropriate sampling distribution. ○ Two-tailed test; z-distribution. Two-tailed test; t-distribution. Left-tailed test; z-distribution. Left-tailed test; t-distribution. Right-tailed test; t-distribution. We do not have enough information. Right-tailed test; z-distribution.
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